| 1999-Present |
Governing Board Member of the Intercultural Cancer Council (ICC) |
| 1999-Present |
Assistant Professor, University of Colorado Health Sciences Center, American Indian Alaska Native Programs |
| 1998-Present |
President and Chief Executive Officer, Black Hills Center for American Indian Health |
| 1998-Present |
Co-Investigator, Strong Heart Study, Dakota Center |
| 1996-1998 |
Medical Officer, Director, Social and Behavioral Sciences, Sioux San Hospital, Rapid City, South Dakota |
| 1994-1996 |
Acting Instructor, Department of Medicine, University of Washington, School of Medicine, Seattle, Washington |
| 1992-1994 |
Clinical Director/Supervisory Medical Officer, U.S. Public Health Service Indian Hospital, Eagle Butte, South Dakota |
| 1989-1992 |
Resident in Internal Medicine, University of Washington, Medical Center, Seattle, WA |
| 1988-1989 |
Multi-Subject Tutor, San Diego Unified School District, Title IV Indian Education program, San Diego, California |
| 1988 |
Clinical Intern, United States Public Health Service Indian Hospital, Eagle Butte, South Dakota |
| 1986 |
Clinical Intern, United States Public Service Indian Hospital, Santa Fe, New Mexico |